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; as the solid crosspiece running between parallel slides, which receives motion from the piston of a steam engine and imparts it to the connecting rod, which is hinged to the crosshead.

a mass of steam in the end of the cylinder of a steam engine to receive the impact of the piston;

The chamber of a steam engine in which the piston is moved by the force of steam.

various purposes. Diaphragm pump, one in which a flexible diaphragm takes the place of a piston.

o called direct-action steam engine. -- Direct-acting steam pump, one in which the steam piston rod is directly connected with the pump rod; -- also called direct-action steam pump.

ntity of saturated solvent is displaced, or removed, for another quantity of the solvent. Piston displacement (Mech.), the volume of the space swept through, or weight of steam, water, etc., displaced, in a given time, by the piston of a steam engine or pump.

tions by which steam is supplied to and withdrawn from the cylinder at each stroke of the piston; viz., admission, suppression or cutting off, release or exhaust, and compression of exhaust steam prior to the next admission. Geographical distribution, the natural arrangements of animals and plants in particular regions…

Something inserted, as a wedge; the piston or sucker of a pump or syringe.

Length of stroke, as of a piston; stroke. [An awkward use of the word.]

s allowed to escape from the cylinder after having been employed to produce motion of the piston. -- Exhaust valve (Steam Engine), a valve that lets exhaust steam escape out of a cylinder.

with the boiler has been cut off, by which it continues to exert pressure upon the moving piston.

The removable flange, or cover, of a piston. See Illust. of Piston.

A pump having a solid piston, or plunger, for drawing and forcing a liquid, as water, through the valves; in distinction from a pump having a bucket, or valved piston.

The solid piston of a force pump; the instrument by which water is forced in a pump.

The plaited hemp used for packing a piston, as of the steam engine and its pumps.

for cutting off steam at a certain part of the stroke, so as to leave it to act upon the piston expansively; the cut-off. See under Expansion. -- Feed gear. See Feed motion, under Feed, n. -- Gear cutter, a machine or tool for forming the teeth of gear wheels by cutting. -- Gear wheel, any cogwheel. -- Running gea…

the part of a steam engine on which the crosshead slides, and by which the motion of the piston rod is kept parallel to the cylinder, being a substitute for the parallel motion; -- called also guide, and slide bar. -- Guide block (Steam Engine), a block attached in to the crosshead to work in contact with the guide b…

ill, a drilling machine having a horizontal drill spindle. -- Horizontal engine, one the piston of which works horizontally. -- Horizontal fire (Mil.), the fire of ordnance and small arms at point-blank range or at low angles of elevation. -- Horizontal force (Physics), the horizontal component of the earth's magnet…

From without inward; toward the inside; as, the inboard stroke of a steam engine piston, the inward or return stroke.

An inward stroke; specif., in a steam or other engine, a stroke in which the piston is moving away from the crank shaft; -- opposed to outstroke.